Typewriting machine



I I 7 1,636,696 y 1 4 A. G. F. KUROWSKI TYPEWRITING MACHINE Filed Sept. 29. 1925 c are pivotally Patented July 26, "i927.

nnirsn STAT-ES ALFRED G. F. K'UBJOWSKI, OF BROOKLYN, NEW YORK,

TYPEWRITER COMPANY, OF NEW YORK, N.

ASSIGNOR TO UNDEBWOOD Y., -A CORPORATION 'OF DELAWARE.

TYPEWRITING MACHINE.

Application filed September .This invention relates to sound-deadening casings or cabinets for typewriting machines.

It is customary to provide such casings with a glass window at the top thereof, so as to render visible the work-sheet. However, owing to the refiectory nature of .the glass, objectionable glare may be thrown in the eyes of the typist, thereby rendering the work-sheet invisible, and consequently defeating the purpose of the window.

Various expedients have been resorted to for preventing objectionable reflections from the surface of the glass to the eyes, such as, for instance, a blind or shield positionable upon the casing in such a manner as to intercept the rays of light directed the glass. Said. blind has been ordinarily built the full width of the opening, and, in order to intercept the rays of light which may obstruct the vision of the work-sheet, useful light is also intercepted, thereby rendering the inside of the cabinet dark, which is objectionable.

In this invention, means are provided whereby the glare-causing rays are intercepted, while, at the same'time, the other rays of light illuminate the inside of the casing, thereby rendering visible the work s met.

In the present exemplification of the invention, there is provided a support movably mounted upon the casing and overlying the window. On the support there is adjustably mounted a shield, which may be positioned and set in any suitable position or region over the glass and thus nullity the bothersome rays of lightonly. Two or more shields may beused, depending upon the sources of light causing the glares.

Another feature of this invention relates to means for facilitating the cleaning of the typewriter types, without necessitating the withd awal of the typewriter from the casing. Tn the Underwood machine, the types mounted in an arcuate plate or sector and are thrown back into a type basket at the. front of themachine. The

front plate of said Underwoodmachineis,

Jrovided with an arcuate opening in front or the type-basket, and it is intended to provide the front wall of the casing'with a similar opening and a hinged plate conforming sound-deadening casing glare-prevention sion of sound by purpose of the 29,1925. serial 110-59354.

to the outline of the opening, thus providing a seal to prevent :the emission of sound, while at the same time rendering the types accessible from the outside ,ofthecasing. The upper" portion of the front wall of the casing partially overhangs the keyboard, and the hinged. part of the plate includes a forward extension terminating in a hingeeye swingably secured to a rod whichbridges a recessed portion of the overhang. A novel latch holds the lower edge of the hinged plate to the adjacent front wall of the cas- Other features and advantages willhereinafter appear.

In the accompanying drawing,

Figure 1 is a side view, in elevation,

of an 'Under wood soundrdeadeningcasing having an Underwood.typ'ewriting machine placed therein, and shows the invention appl ed thereto.

Figure 2 is a 'front v'iew, in elevation, of

the same cabinet, having the invention ap--' plied thereto.

Figure 3 is a crosssectional plan view, through the line 33 of Figure2.

Figure 4 is a cross-sectional view, in elevation, through the line 1& of Figure 2.

There is in the market an -Underwood for Underwood typewriting machines, and one otits'objects is to deaden the noise arising from theoperation of the machine. said casing is diagrammatically illustrated in Figures 1 and 2, and is shown enclosing a typewriter 10 which, however, is not completelyenclosed, but has a keyboard extension 11 protruding through an opening 12 in the front wall of the casing, to render the machine operable from the outside of the casing.

The casing includes a body-part 13 and cover 14, the latter being'pivotally mounted upon the former by means of hinges 15. At the top of the cover there is providedan opening'16 which is sealed against the; emismeans of a glass-plate v17 fitted into 'arecess18'in' the cover and secured-thereto by means of clips 19. The glass, s to'renderthe w,orlrsheet visiblewithout necessitating the displacement of' the cover.

In order to prevent reflections of the rays of light'from striking the glassand from intertering with the comfortable-reading "of the Work-sheet, there are provided one or more glare-prevention or spot shields 2O rockably and slidably mounted upon a support or cross-bar 21 which is in turn rockably mounted upon studs 22 secured to brackets 23, the brackets, in turn, being fast to the cover 14; by means of screws 24:. By

means of the shields 20 it is possible to iIitercept bothersome rays of light which may prevent the reading of the work-sheet, while at the same time permitting other rays of light to go through the glass and thus illuminate the interior of the casing, which is advantageous.

According to the present exemplification of this invention, two spot shields are shown but it is obvious that either one, or more than two, could be used to conform with lighting conditions in the room where the machine is used. The shields are made of opaque material, such as sheet-metal, and are secured to hubs 25 by means of screws 26. The hubs 25 are provided with open slots 27 engaging with the bar 21 and are held thereon by means of pointed screws 28 as shown in Figure 1. The screws 28 may have knurled heads 29 to facilitate their manual operation, thereby precluding the necessity ofusing tools to make adjustments. The screws may be loosened to either rock the shields or to move them into any desired position along the bar, and each may be caused to swing to either position shown, or the bar may be swung and lowered to the position shown in dot-and-dash lines, or lower if necessary, or the shields may be taken otfwhen not required.

Since it is desired to sin'iplify the manipulation of the shields as much as possible, so that the operative may quickly adjust them to conform with the lighting conditions of the room, there are provided friction joints for the support 21. Said frame terminates with two side arms 30, each having a loop 31 at the end thereof, the loop encircling the studs 22. The ends of the studs, according to this invention, are threaded and have nuts 32 and lock-nuts 33 to hold cupwvasln ers 34 under predetermined pressure.

Another feature of this invention relates to means for facilitating the cleaning of types 35, which are operated by keys 36, without necessitating the removal of the machine from the casing. The Underwood machine is provided with an arcuate opening 37 conforming with the outline of the type-basket in front of the machine. Said opening is normally left uncovered when the machine is operated outside of the cat:- ing, but when in the casing, it is necessary to somehow cover the opening to prevent the emission of sound. therethrough. In this invention, it is proposed to provide a plate 38 conforming'with the outlinefof the opening 37 and to provide the plate with a hinge 39 fast thereto, or forming an integral part thereof, the hinge coo'g:)erating with rod 40 embedded in slots 41 in an overhanging portion of the casing and secured thereto by means of screws 42. The hingeportion of the plate 38 extends forward from the body of the plate, as illustrated in Figures 1 and 3.

At the bottom, the plate 38 is provided vith a snap-lock or catch 43 engaging with a groove 4-4 in the front wall 4:5 of the machine. Said lock may be secured to the plate 38 by means of screws 4L6 through a metal strip 47, which incidentally may serve as a means for securing a felt lining 4 8 to prevent the emission of sound through the plate 38.

shown.

It will be noted that the catch is backed against the plate 38 by means of a rear eX- tension 50, so as to prevent bending the comparatively thin detent 51 of the latch. The plate 4-9 isbent at 52, the bent portion engaging with the upper edge of the strip 47.

Variations. may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. The combination. with a sound-deadening casing for a typewriting machine, the casing having a glass window to render visible the platen of said machine, of a support extending along the window, and a glareprevention shield overlying only a portion of said window, the shield being movable on said support from one region to The lock may consist of a resilient plate 49 conveniently formed into shape as another along said window, whereby glareiausing rays of light are prevented from striking the glass, while other rays of light are permitted to pass by said shield and through the glass to the interior of the casmg.

2. The combination with a sound-deadening casing for a casing having a glass-sealed opening to render visible the platen of said machine, of a spot-shield overlying said opening, where by objectionable rays of light, interfering with the visibility of the platen, may be ini tercepted by said shield previous to striking the glass, said spot-shield being rockablv and slidably mounted upon a frame, the frame being in turn rockably mounted upon brackets on said casing. i a 3, The combination with a sound-deaden- 111g casing for a typewriting machine, the casing having a glass window to render visible the platen of said machine, of a support extending along the window, and a plurality of glare-prevention shields carried by the support and movable independently of one another from one region to another lengthwise of said window, to prevent glare-caustypewriting machine, the

ging rays of light from st iking the glass, while permitting other light to pass by said shields and through the glass to the interior of the casing.

l. he combination with a sound-deadening casing for a typewriting machhie, 'th

having a glass window to render visible the platen of said machine, of a support extending along the window, and a plurality of glare-prevention shields carried by the support and movable independently of one another from one region to another lengthwise of said window, to prevent glarecausing rays of light from striking the glass, while permitting other light to pass by said shields and through the glass to the interior of the casing, said support being movable crosswise of said window to change the position of all of said shields, as a unit.

5. The combination with a sound-deadening casing for a typewriting machine, the casing having a glass-sealed opening to render visible the-platen of said machine, of a spot-shield overlying said opening, and

means for controlling the position of said spot-shield, said controlling means including a hub fast to the shield, the hub having an open slot to receive a cross-bar pivotally mounted on brackets on the casing, and means for setting the shield in any desired position on said cross-bar.

(i. The combination with a sound-deadeniug casing for a typewriting machine, the casing having a glass window, of a support overlying the window, and a plurality of glare-prevention shields carried by the support and adjustable therealong to diffeernt angles with respect to one another.

7 The combination with a sound-deadening casing' for a typewriting machine, the casing having a glass window, of a support adjacent the window, and a plurality of glaren'eventiou shields carriedby the support and overlying only portions of said window, the shields ferent angles relativelyto one another and independently movable from one region to another along said window for preventing glarecausing light from striking the glass, while permitting other light to pass bethe casing.

8. The combination with a sound-deadencasing, having a glass-sealed opening in line of vision of the operative to permit is observance of printing upon a worksheet in typewriting machine enclosed therein, of means for preventing some of the rays of light from striking the glass, said means including a plurality of spotshields adjustably mounted upon a frame, which is in turn adjustably mounted upon brackets, borne by said casing.

The combination with a sound-deadening casing, having a glass-sealed opening in being adjustable to dif tween the shields, through the glass, and into the line of vision of the operative to permit the observance of printing upon a worksheet in a typewriting machine enclosed therein, of means for preventing'some of the rays of light from striking the glass, said means being adjustable to conform with lighting conditions in the room in which the sound-deadening casing is used, said means including a plurality of circular plates rockably and slid-ably mounted upon a frame, the frame, in turn, being rockably mounted upon the casing.

it). The combination with a sound-deadening casing for a typewriting machine, the casing having a glass window, of a support overlying the window, and a plurality of glare-prevention shields car ied by the support and adjustable therealong to different angles with respect to one another, said support being movable from one position to another across said window.

11. In combination, a sound-deadening casing for a front-strike typewriting machine having a type-basket in front thereof to facilitate the cleaning ofthe types, the front of said casing including a portion overhanging the keyboard and a wall therebeneath having an opening permitting cess to the type-basket, and a door conforming with said opening, said door including a forwardly-extending portion terminating in a hinge-eye mount-ed upon a rod extending across a recess in the overhanging portion, said. recess forming a continuation of said opening, and the forwardly-extending por tion of the door providing a closure for said recess.

12. In combination, a sound-deadening casing for a front-strike typewriting machine having a type-basket in front thereof to facilitate the cleaning of the types, the, front of said casing including a portion overhanging the keyboard and a wall therebeneath having an opening permitting access to the type-basket, adoor conforming with said opening, said .door including a forwardly-extending portion terminating in a hinge-eye mounted upon a rod extending across a recess in the overhanging portion,

said recess forming a continuation of said opening, and the forwardly-extending portion of the door providing a closure for said recess, and a detent carried by said door adjacent the lower edge thereof, said detent including a resilient flat spring having its free end provided with a catch, said detent also including finger carried by said spring and arranged to bear against the rear face of the door, whereby to steady said spring, said wall of the casing having a depression into which the catch is projected to hold the door closed. v

13. The combination with a sound-deadening casing for a front-strike typewriting machine having a type-basket in front thereof to facilitate the cleaning of the types, and the front Wall of said casing having an opening; conforming With the outline of the type-basket, of means for closing said opening, said means including a plate rookably mounted upon a hinge secured to the front wall of the casing at the top thereof, and

means for resiliently locking the plate in its closed position, said last-mentioned means including a clip made of resilient material, said clip being secured to the plate andengaging With a detent forming an integral part of the front Wall of the machine. I

ALFRED G. F. KUROWSKI. 

